[E70M]

I have a 201150i with a dinan stage 2 and could tell a huge difference between 1 and 2 in regards to delivery of power. Definitely not the same as my X5M, someone described it as a 'violent' acceleration and I thought that was pretty accurate -- either way a huge difference from stock. I don't have experience with many other tunes, but I wouldn't hesitate to do it again for what it's worth..